Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A display driver, comprising: buffer memory circuitry configured to store first subpixel data for a plurality of first subpixels of input subpixels of an input image, wherein the plurality of first subpixels each are encompassed at least partially in a plurality of predetermined regions defined within two lines of input subpixels of the input image; a register configured to store coefficients that respectively correspond to shapes of portions of the first subpixels encompassed in the predetermined regions, wherein for each of the predetermined regions, a first total of the coefficients of a first set of the portions of the first subpixels equals a second total of the coefficients of a second set of the portions of the first subpixels, wherein an adjacent two portions of the first set are diagonally arranged, and wherein an adjacent two portions of the second set are diagonally arranged; and subpixel rendering (SPR) circuitry configured to calculate second subpixel data for second subpixels of an output image based on the first subpixel data and the coefficients.
A display driver system addresses the challenge of accurately rendering high-resolution images on lower-resolution displays by processing subpixel data. The system includes buffer memory circuitry that stores subpixel data for input subpixels of an input image, focusing on subpixels partially or fully within predefined regions spanning two lines of input subpixels. A register stores coefficients corresponding to the shapes of these subpixel portions within the regions. For each region, the sum of coefficients for a first set of diagonally adjacent subpixel portions equals the sum for a second set of diagonally adjacent subpixel portions, ensuring balanced rendering. Subpixel rendering (SPR) circuitry then calculates output subpixel data for the display by applying these coefficients to the input subpixel data. This approach improves image quality by precisely mapping input subpixels to output subpixels, particularly in regions where subpixels overlap or are partially visible. The system is designed to enhance visual fidelity in displays with lower resolution than the input image, addressing common artifacts like aliasing or blurring.
2. The display driver according to claim 1 , wherein a total number of the second subpixels of the output image is two thirds of a total number of the input subpixels of the input image.
This invention relates to display driver technology, specifically addressing the challenge of efficiently processing and displaying images with reduced subpixel count while maintaining visual quality. The display driver receives an input image composed of a plurality of input subpixels and generates an output image with a reduced number of subpixels. The output image is displayed on a display panel that has fewer subpixels than the input image, allowing for cost-effective and power-efficient display solutions. The driver includes a subpixel mapping unit that maps the input subpixels to the output subpixels, ensuring that the visual information is accurately represented despite the reduction in subpixel count. The mapping process may involve techniques such as subpixel rendering or interpolation to preserve image clarity and detail. A key feature of this invention is that the total number of output subpixels in the output image is two-thirds of the total number of input subpixels in the input image. This specific ratio allows for a balanced trade-off between display resolution and processing efficiency, making it suitable for applications where high-resolution displays are not required, such as in low-power or cost-sensitive devices. The display driver may also include additional components, such as a color processing unit, to further optimize the image output for the display panel. The invention aims to provide a practical solution for reducing the complexity and cost of display systems while maintaining acceptable image quality.
3. The display driver according to claim 1 , wherein totals of the coefficients of the portions of the first subpixels encompassed in the respective predetermined regions are the same as each other.
This invention relates to display driver technology, specifically addressing the challenge of achieving uniform brightness and color consistency across a display panel. The display driver controls the operation of subpixels within a display, where each subpixel is divided into portions that contribute to the overall pixel output. The invention ensures that the sum of the coefficients (which determine the contribution of each subpixel portion to the final display output) within predefined regions of the display is equalized. This prevents variations in brightness or color that can occur due to differences in subpixel arrangement or manufacturing tolerances. By maintaining consistent coefficient totals across these regions, the display driver compensates for potential irregularities, resulting in a more uniform and accurate visual output. The invention is particularly useful in high-resolution displays where precise control over subpixel contributions is critical for maintaining image quality. The solution involves dynamically adjusting the coefficients of subpixel portions to balance their contributions, ensuring that the display produces consistent brightness and color across its entire surface. This approach enhances display performance without requiring changes to the physical structure of the display panel itself.
4. The display driver according to claim 1 , wherein a first third total of the coefficients assigned to one of the first subpixels is the same as a fourth total of the coefficients assigned to another one of the first subpixels.
This invention relates to display driver circuitry for managing subpixel coefficients in a display system. The problem addressed is ensuring uniform brightness and color accuracy across subpixels by balancing the distribution of coefficients assigned to different subpixels. In a display panel, subpixels (e.g., red, green, blue) are driven by coefficients that determine their brightness levels. Uneven coefficient distribution can lead to visual artifacts, such as color imbalance or brightness variations. The display driver includes circuitry that assigns coefficients to subpixels in a way that maintains consistency. Specifically, a first set of subpixels (e.g., all red subpixels) is divided into groups, and the total sum of coefficients assigned to one group of these subpixels is equal to the total sum of coefficients assigned to another group of the same subpixels. This ensures that all subpixels of the same type receive a balanced contribution to the overall display output, preventing uneven brightness or color shifts. The driver may also include additional circuitry to adjust coefficients dynamically based on input signals or display conditions, further improving uniformity. This approach is particularly useful in high-resolution or high-dynamic-range displays where precise subpixel control is critical. By equalizing the coefficient sums across subpixel groups, the driver enhances visual quality and reduces artifacts caused by uneven subpixel activation. The invention may be applied in LCD, OLED, or other display technologies where subpixel coefficient management is required.
5. The display driver according to claim 1 , wherein the coefficients are determined based on areas of the respective portions of the first subpixels encompassed in the predetermined regions.
A display driver system is designed to improve image quality by adjusting subpixel rendering. The system addresses the problem of color fringing and artifacts that occur when displaying images on displays with subpixel arrangements, such as RGB or PenTile matrices. The driver processes input image data to generate output signals for driving display subpixels, ensuring accurate color representation and reduced visual distortion. The display driver includes a coefficient determination module that calculates coefficients for each subpixel based on the areas of the respective subpixel portions within predefined regions. These regions are typically aligned with the subpixel layout, and the coefficients are used to weight the contribution of each subpixel to the final displayed image. By accounting for the exact subpixel coverage within these regions, the driver achieves more precise color blending and reduces artifacts caused by misalignment or irregular subpixel shapes. The system also includes a data processing module that applies these coefficients to the input image data, generating modified signals for each subpixel. This ensures that the displayed image maintains color accuracy and smoothness, even when subpixels are not perfectly aligned or when the display has a non-standard subpixel arrangement. The overall approach enhances visual quality by dynamically adjusting subpixel contributions based on their spatial coverage within the predefined regions.
6. The display driver according to claim 1 , wherein the SPR circuitry is further configured to calculate the second subpixel data of the second subpixels of the output image, based on second coefficients corresponding to shapes of portions of the first subpixels not encompassed in the predetermined regions.
A display driver system includes circuitry for processing image data to improve display quality, particularly for high-resolution or high-dynamic-range displays. The system addresses the challenge of accurately rendering subpixels when portions of the subpixels fall outside predetermined regions, such as when scaling or transforming an image. The driver circuitry processes input image data to generate output image data, where the output image includes first subpixels and second subpixels. The first subpixels correspond to regions of the input image that are fully encompassed within predetermined regions of the output image, while the second subpixels correspond to regions of the input image that are only partially encompassed within those regions. The system calculates subpixel data for the first subpixels using first coefficients derived from the input image data. For the second subpixels, the system calculates subpixel data using second coefficients that account for the shapes of the portions of the first subpixels not encompassed within the predetermined regions. This ensures accurate color and brightness representation even when subpixels are partially clipped or transformed. The circuitry may also include interpolation or filtering to further refine the output image data, enhancing visual quality. The system is particularly useful in applications requiring precise subpixel rendering, such as medical imaging, virtual reality, or high-resolution displays.
7. The display driver according to claim 6 , wherein the second coefficients are determined based on areas of the respective portions of the respective portions of the first subpixels not encompassed in the predetermined regions.
A display driver system is designed to improve image quality in high-resolution displays by compensating for subpixel rendering artifacts. The system addresses the challenge of accurately representing colors and details when pixels are divided into smaller subpixels, which can lead to visual distortions. The display driver includes a processing unit that generates first coefficients for adjusting the brightness of subpixels based on input image data. These coefficients are then refined using second coefficients, which are calculated based on the areas of subpixel portions that fall outside predetermined regions. The predetermined regions define the active display areas of each subpixel, while the remaining portions are considered inactive or non-display areas. By accounting for these inactive areas, the second coefficients ensure that the brightness adjustments are applied only to the functional parts of the subpixels, reducing artifacts and enhancing color accuracy. The system dynamically adjusts these coefficients in real-time to maintain optimal image quality across different display conditions. This approach improves visual fidelity, particularly in high-resolution displays where subpixel rendering plays a critical role in image clarity.
8. The display driver according to claim 1 , wherein the predetermined regions in a row have two patterns of the coefficients, and wherein the buffer memory circuitry comprises a pair of buffer memories associated with the two patterns, respectively.
A display driver system is designed to improve image quality and processing efficiency in display devices. The system addresses the challenge of efficiently handling image data for display, particularly in high-resolution or high-refresh-rate applications where processing and memory bandwidth constraints can degrade performance. The display driver includes circuitry that processes image data by applying coefficients to predetermined regions of the display, enhancing visual output quality. These coefficients are stored in buffer memory to allow rapid access during display operations. The system further optimizes memory usage by dividing the display into rows, where each row contains two distinct patterns of coefficients. To support this, the buffer memory circuitry includes a pair of buffer memories, each dedicated to one of the two coefficient patterns. This dual-buffer approach ensures that the correct coefficients are quickly accessible for each row, reducing latency and improving display responsiveness. The use of separate buffer memories for different coefficient patterns allows for efficient data management and minimizes the need for frequent memory access, which can be a bottleneck in high-performance display systems. This design enhances both the speed and quality of image rendering while maintaining low power consumption.
9. The display driver according to claim 8 , wherein the two patterns in an odd-numbered row and the two patterns in an even-numbered row are different from each other, wherein the two patterns repeat with a cycle of two subpixels of the output image in each of the odd-numbered row and the even-numbered row.
This invention relates to display driver technology, specifically addressing the challenge of improving image quality in displays by optimizing subpixel rendering patterns. The display driver generates an output image by processing input image data and applying a pattern to the subpixels of the display. The pattern alternates between odd-numbered and even-numbered rows, with each row containing two distinct patterns that repeat every two subpixels. This alternating pattern structure helps reduce visual artifacts such as color fringing or aliasing, enhancing the overall sharpness and clarity of the displayed image. The driver adjusts the subpixel data based on the input image data and the predefined pattern, ensuring consistent and accurate color reproduction across the display. The alternating pattern design in odd and even rows further improves uniformity and reduces moiré effects, particularly in high-resolution displays. The invention focuses on the subpixel-level control of the display driver to achieve better image quality without requiring changes to the display hardware itself.
10. The display driver according to claim 8 , wherein the buffer memories each are configured to store the first subpixel data for six of the first subpixels.
A display driver system includes a buffer memory configured to store subpixel data for a display panel. The buffer memory is divided into multiple segments, each storing data for a subset of subpixels. The system further includes a data processing circuit that generates subpixel data for a plurality of subpixels in the display panel. The data processing circuit outputs the subpixel data to the buffer memory, where it is stored in the appropriate segments. The buffer memory then provides the stored subpixel data to a data driver, which drives the subpixels of the display panel based on the received data. The buffer memory is configured to store subpixel data for six subpixels in each segment, allowing efficient data management and transfer. This system improves data handling efficiency in display drivers by organizing subpixel data in a structured manner, reducing latency and improving display performance. The invention addresses the challenge of managing large volumes of subpixel data in high-resolution displays, ensuring smooth and accurate image rendering.
11. The display driver according to claim 1 , wherein each of the predetermined regions is a rhombus or a hexagon.
A display driver system is designed to control a display panel by dividing the display area into multiple predetermined regions. Each region is independently driven to adjust the display characteristics, such as brightness or color, based on the content being displayed. This approach improves power efficiency and visual quality by optimizing the driving parameters for each region. The regions can be shaped as rhombuses or hexagons, which allow for efficient tiling across the display surface. These geometric shapes enable better coverage and reduced overlap between regions, enhancing the overall performance of the display. The system dynamically adjusts the driving signals for each region to compensate for variations in display characteristics, such as brightness or color uniformity, across different areas of the screen. This regional control helps minimize power consumption and improves the visual experience by ensuring consistent and accurate image rendering. The use of rhombus or hexagonal regions provides flexibility in designing the display layout while maintaining efficient control over the display's performance.
12. The display driver according to claim 1 , wherein the predetermined regions are determined based on geometric centers of the second subpixels.
A display driver system is designed to improve image quality in display panels by dynamically adjusting the driving signals for subpixels. The system addresses the problem of color distortion and uneven brightness that occurs when subpixels are misaligned or when manufacturing defects cause variations in subpixel performance. The display driver includes a control unit that processes input image data and generates driving signals for subpixels, which are grouped into primary color channels such as red, green, and blue. The driver also includes a compensation module that analyzes the spatial arrangement of subpixels and applies corrections to compensate for misalignments or defects. The compensation module determines predetermined regions within the display panel based on the geometric centers of secondary subpixels, which are smaller subpixels within a primary color channel. These regions are used to define localized correction zones where the driving signals are adjusted to compensate for subpixel misalignments. The system dynamically adjusts the driving signals in real-time to ensure consistent color reproduction and brightness across the display. This approach improves visual quality by reducing artifacts caused by subpixel irregularities, particularly in high-resolution displays where subpixel precision is critical. The solution is applicable to various display technologies, including LCD, OLED, and microLED panels, where subpixel alignment and uniformity are essential for optimal performance.
13. The display driver of claim 1 , wherein totals of the coefficients of the portions of the first subpixels encompassed in the respective predetermined regions are the same as each other, and wherein a third total of the coefficients assigned to one of the first subpixels is the same as a fourth total of the coefficients assigned to another one of the first subpixels.
This invention relates to display driver circuitry for managing subpixel rendering in display systems. The problem addressed is ensuring uniform brightness and color consistency across a display by precisely controlling the distribution of coefficients applied to subpixels within predefined regions. The display driver adjusts coefficients for subpixels to compensate for variations in subpixel arrangement or size, which can otherwise cause visual artifacts like color fringing or brightness irregularities. The driver assigns coefficients to portions of subpixels within specific regions, ensuring that the sum of coefficients for subpixels in each region is equal. Additionally, the total coefficients assigned to any individual subpixel are balanced with those assigned to other subpixels, maintaining consistency in display output. This approach improves image quality by mitigating subpixel-related distortions while preserving color accuracy and brightness uniformity. The solution is particularly useful in high-resolution displays where subpixel misalignment or size discrepancies are more pronounced. The driver's coefficient distribution logic ensures that visual artifacts are minimized without requiring complex hardware modifications, making it suitable for integration into existing display systems.
14. A display device, comprising: a display panel; and a display driver configured to output an output image generated through subpixel rendering (SPR) on the display panel, wherein the display driver comprises: buffer memory circuitry configured to store first subpixel data for a plurality of first subpixels of input subpixels of an input image, wherein the plurality of the first subpixels each are encompassed at least partially in a plurality of predetermined regions defined within two lines of input subpixels of the input image; a register configured to store coefficients that respectively correspond to shapes of portions of the first subpixels encompassed in the predetermined regions, wherein for each of the predetermined regions, a first total of the coefficients of a first set of the portions of the first subpixels equals a second total of the coefficients of a second set of the portions of the first subpixels, wherein an adjacent two portions of the first set are diagonally arranged, and wherein an adjacent two portions of the second set are diagonally arranged; and SPR circuitry configured to calculate second subpixel data of second subpixels of an output image, based on the first subpixel data and the coefficients.
This invention relates to display devices that use subpixel rendering (SPR) to improve image quality. The problem addressed is the need for efficient and accurate subpixel rendering to enhance resolution and reduce artifacts in displayed images. The display device includes a display panel and a display driver that generates an output image through SPR. The display driver contains buffer memory circuitry to store subpixel data for input subpixels of an input image, focusing on subpixels that fall within predefined regions spanning two lines of input subpixels. A register stores coefficients corresponding to the shapes of subpixel portions within these regions. For each region, the sum of coefficients for one set of diagonally arranged subpixel portions equals the sum of coefficients for another set of diagonally arranged subpixel portions. This ensures balanced weighting during rendering. The SPR circuitry then calculates output subpixel data for the final image based on the input subpixel data and these coefficients. The system optimizes subpixel rendering by precisely controlling the contribution of each subpixel portion, improving image sharpness and color accuracy. The invention is particularly useful in high-resolution displays where subpixel rendering is critical for visual quality.
15. The display device according to claim 14 , wherein a total number of the second subpixels of the output image is two thirds of a total number of the input subpixels of the input image.
This invention relates to display devices, specifically those that reduce the number of subpixels in an image while maintaining visual quality. The problem addressed is the computational and power efficiency of display systems, particularly in high-resolution applications where processing large numbers of subpixels can be resource-intensive. The solution involves a display device that converts an input image with a certain number of subpixels into an output image with fewer subpixels, where the output image has two-thirds the number of subpixels of the input image. The device includes a subpixel conversion unit that processes the input image to generate the output image, ensuring that the reduction in subpixels does not significantly degrade image quality. The conversion process may involve techniques such as spatial filtering, interpolation, or other image processing methods to maintain visual fidelity. The invention is particularly useful in applications where reducing the number of subpixels can improve processing speed, lower power consumption, or simplify hardware design without compromising the viewing experience. The display device may be part of a larger system, such as a television, monitor, or mobile device, where efficient subpixel management is critical for performance and energy efficiency.
16. The display device according to claim 14 , wherein totals of the coefficients of the portions of the first subpixels encompassed in the respective predetermined regions are the same as each other.
A display device includes an array of subpixels arranged in a repeating pattern, where each subpixel is divided into portions that contribute to different color channels. The device adjusts the light emission of these portions to control color output. The subpixels are grouped into predetermined regions, and the coefficients (e.g., weights or drive values) applied to the portions within each region are balanced such that the total coefficient sum for the portions in one region matches that of another. This ensures uniform color reproduction and brightness across the display, even when subpixels are shared between regions or when portions are partially included in multiple regions. The balancing of coefficients compensates for variations in subpixel coverage, preventing color or luminance inconsistencies. The technique is particularly useful in high-resolution displays where subpixels may overlap or be shared between adjacent pixels, ensuring accurate color rendering without requiring additional hardware or complex calibration. The solution addresses the challenge of maintaining visual uniformity in displays with complex subpixel arrangements, such as those used in advanced LCD or OLED panels.
17. The display device according to claim 14 , wherein a third total of the coefficients assigned to one of the first subpixels is the same as a fourth total of the coefficients assigned to another one of the first subpixels.
A display device includes an array of pixels, each pixel comprising multiple subpixels, such as red, green, and blue subpixels. The device adjusts the brightness of each subpixel by assigning coefficients to control their contribution to the overall pixel output. In this configuration, a third total of coefficients assigned to one subpixel of a particular type (e.g., red) is equal to a fourth total of coefficients assigned to another subpixel of the same type. This ensures uniform brightness distribution across subpixels of the same color, improving color consistency and reducing visual artifacts. The coefficients may be dynamically adjusted based on input image data or display conditions to optimize performance. The device may also include additional subpixels, such as white or yellow, to enhance brightness or color gamut. The coefficient assignment logic ensures that subpixels of the same type receive balanced contributions, preventing uneven luminance and improving display quality. This approach is particularly useful in high-resolution or high-dynamic-range displays where precise subpixel control is critical.
18. The display device according to claim 14 , wherein the predetermined regions in a row have two patterns of the coefficients, and wherein the buffer memory circuitry comprises a pair of buffer memories associated with the two patterns, respectively.
A display device includes a pixel array and a data driver circuit that processes image data for display. The device addresses the challenge of efficiently handling image data with varying pixel characteristics, such as different color subpixels or resolution variations, which can complicate data processing and increase power consumption. The display device includes a buffer memory circuitry that stores coefficients for adjusting pixel data. These coefficients are applied to predetermined regions of the pixel array, such as rows or columns, to correct or enhance display output. The buffer memory circuitry is configured to store multiple sets of coefficients, allowing different adjustment patterns to be applied to different regions. Specifically, the predetermined regions in a row can have two distinct patterns of coefficients, and the buffer memory circuitry includes a pair of buffer memories, each associated with one of the two patterns. This dual-buffer approach enables efficient switching between coefficient sets, reducing processing delays and improving display performance. The device may also include a coefficient generation circuit to dynamically update the coefficients based on display conditions or user preferences. The overall system ensures precise control over pixel adjustments while minimizing hardware complexity and power usage.
19. The display device according to claim 18 , wherein the two patterns in an odd-numbered row and the two patterns in an even-numbered row are different from each other, wherein the two patterns repeat with a cycle of two subpixels of the output image in each of the odd-numbered row and the even-numbered row.
This invention relates to display devices, specifically addressing the challenge of improving image quality by optimizing subpixel arrangement. The device includes a display panel with subpixels arranged in rows and columns, where each row contains two repeating patterns. The patterns in odd-numbered rows differ from those in even-numbered rows, and each pattern repeats every two subpixels within its respective row. This alternating arrangement helps reduce visual artifacts like color fringing or moiré effects by disrupting regular pixel alignment. The subpixels may be color elements such as red, green, and blue, and the patterns can vary in their subpixel order or configuration. The display panel may also include a color filter array and a backlight system to enhance color reproduction. The alternating pattern design ensures that adjacent rows do not repeat the same subpixel sequence, which improves spatial resolution and color blending. This technique is particularly useful in high-resolution displays where subpixel rendering is critical for sharpness and color accuracy. The invention aims to provide a cost-effective solution for enhancing display performance without requiring complex manufacturing processes.
20. A method for subpixel rendering, comprising: receiving input image data comprising input subpixels; storing first subpixel data for a plurality of first subpixels of the input subpixels, wherein each of the plurality of first subpixels is encompassed at least partially in a plurality of predetermined regions defined within two adjacent lines of the input subpixels; storing coefficients corresponding to shapes of portions of the plurality of first subpixels that are encompassed in the plurality of predetermined regions, wherein for each of the predetermined regions, a first total of the coefficients of a first set of the portions of the first subpixels equals a second total of the coefficients of a second set of the portions of the first subpixels, wherein an adjacent two portions of the first set are diagonally arranged, and wherein an adjacent two portions of the second set are diagonally arranged; and generating, based on the first subpixel data and the coefficients, output image data comprising second subpixel data for second subpixels.
This invention relates to subpixel rendering techniques used in display technologies to improve image quality by enhancing resolution and reducing artifacts. The problem addressed is the visual distortion that occurs when displaying images on displays with subpixel arrangements, particularly in cases where subpixels are not perfectly aligned or when scaling is required. The invention provides a method to optimize subpixel rendering by leveraging predefined regions within adjacent lines of input subpixels to improve color accuracy and sharpness. The method involves receiving input image data composed of input subpixels and storing data for a subset of these subpixels, referred to as first subpixels, which are partially or fully contained within predefined regions spanning two adjacent lines of subpixels. Coefficients are stored to represent the shapes of the portions of these first subpixels that fall within the predefined regions. These coefficients are structured such that for each predefined region, the sum of coefficients for a first set of diagonally arranged subpixel portions equals the sum of coefficients for a second set of diagonally arranged subpixel portions. This balancing ensures consistent color distribution and reduces visual artifacts. The method then generates output image data by processing the stored subpixel data and coefficients to produce second subpixels, which are optimized for display. The technique enhances subpixel rendering by maintaining color accuracy and improving image sharpness, particularly in displays with non-standard subpixel arrangements.
21. The method of claim 20 , wherein storing the coefficients comprises: determining first coefficients for a first region and second coefficients for a second region of the plurality of predetermined regions according to one or more predetermined conditions.
This invention relates to a method for storing coefficients in a data processing system, particularly for optimizing data compression or encoding in regions of a data set. The method addresses the challenge of efficiently managing coefficients across different regions of a data set to improve performance, such as reducing computational overhead or enhancing accuracy in applications like image processing, signal processing, or machine learning. The method involves dividing a data set into a plurality of predetermined regions and storing coefficients for each region. Specifically, it determines first coefficients for a first region and second coefficients for a second region based on one or more predetermined conditions. These conditions may include factors like region size, data characteristics, or processing constraints. By tailoring coefficients to specific regions, the method ensures that each region is processed optimally, improving overall efficiency and accuracy. The method may also involve generating the coefficients based on statistical analysis, machine learning models, or predefined rules. The stored coefficients can then be used in subsequent processing steps, such as encoding, decoding, or data transformation, to achieve better performance. This approach is particularly useful in applications where different regions of a data set require different processing strategies, such as adaptive compression in image or video encoding. The invention enhances flexibility and adaptability in data processing systems by dynamically adjusting coefficients for different regions.
22. The method of claim 20 , wherein totals of the coefficients of the portions of the first subpixels encompassed in the respective predetermined regions are the same as each other, and wherein a third total of the coefficients assigned to one of the first subpixels is the same as a fourth total of the coefficients assigned to another one of the first subpixels.
This invention relates to image processing techniques for adjusting subpixel coefficients in display systems. The problem addressed is ensuring uniform color balance and accurate color reproduction when processing subpixels in a display, particularly in systems where subpixels are divided into portions for color correction or other adjustments. The invention provides a method to maintain consistent color output by balancing the coefficients assigned to subpixel portions within predefined regions. Specifically, the method ensures that the sum of coefficients for subpixel portions in any given region is equal across all regions. Additionally, the total coefficients assigned to any individual subpixel are balanced with those assigned to other subpixels, preventing uneven color distribution. This approach helps mitigate artifacts such as color fringing or banding that can occur when subpixel coefficients are improperly distributed. The technique is particularly useful in high-resolution displays where precise color control is critical, such as in OLED or LCD panels. By enforcing these coefficient constraints, the method ensures that color accuracy is preserved while allowing for flexible subpixel adjustments.
Unknown
December 22, 2020
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.